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Ritu, Chandra P, Das A. Immune checkpoint targeting antibodies hold promise for combinatorial cancer therapeutics. Clin Exp Med 2023; 23:4297-4322. [PMID: 37804358 DOI: 10.1007/s10238-023-01201-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 09/19/2023] [Indexed: 10/09/2023]
Abstract
Through improving the immune system's ability to recognize and combat tumor cells as well as its receptivity to changes in the tumor microenvironment, immunotherapy has emerged as a highly successful addition to the treatment of cancer. However, tumor heterogeneity poses a significant challenge in cancer therapy as it can undermine the anti-tumor immune response through the manipulation of the extracellular matrix. To address these challenges and improve targeted therapies and combination treatments, the food and drug administration has approved several immunomodulatory antibodies to suppress immunological checkpoints. Combinatorial therapies necessitate the identification of multiple targets that regulate the intricate communication between immune cells, cytokines, chemokines, and cellular responses within the tumor microenvironment. The purpose of this study is to provide a comprehensive overview of the ongoing clinical trials involving immunomodulatory antibodies in various cancer types. It explores the potential of these antibodies to modulate the immune system and enhance anti-tumor responses. Additionally, it discusses the perspectives and prospects of immunomodulatory therapeutics in cancer treatment. Although immunotherapy shows great promise in cancer treatment, it is not exempt from side effects that can arise due to hyperactivity of the immune system. Therefore, understanding the intricate balance between immune activation and regulation is crucial for minimizing these adverse effects and optimizing treatment outcomes. This study aims to contribute to the growing body of knowledge surrounding immunomodulatory antibodies and their potential as effective therapeutic options in cancer treatment, ultimately paving the way for improved patient outcomes and deepening our perception of the intricate interactivity between the immune system and tumors.
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Affiliation(s)
- Ritu
- Department of Biotechnology, Delhi Technological University, Main Bawana Road, New Delhi, 110042, India
| | - Prakash Chandra
- Department of Biotechnology, Delhi Technological University, Main Bawana Road, New Delhi, 110042, India
| | - Asmita Das
- Department of Biotechnology, Delhi Technological University, Main Bawana Road, New Delhi, 110042, India.
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2
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Lee D, Dunn ZS, Guo W, Rosenthal CJ, Penn NE, Yu Y, Zhou K, Li Z, Ma F, Li M, Song TC, Cen X, Li YR, Zhou JJ, Pellegrini M, Wang P, Yang L. Unlocking the potential of allogeneic Vδ2 T cells for ovarian cancer therapy through CD16 biomarker selection and CAR/IL-15 engineering. Nat Commun 2023; 14:6942. [PMID: 37938576 PMCID: PMC10632431 DOI: 10.1038/s41467-023-42619-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 10/17/2023] [Indexed: 11/09/2023] Open
Abstract
Allogeneic Vγ9Vδ2 (Vδ2) T cells have emerged as attractive candidates for developing cancer therapy due to their established safety in allogeneic contexts and inherent tumor-fighting capabilities. Nonetheless, the limited clinical success of Vδ2 T cell-based treatments may be attributed to donor variability, short-lived persistence, and tumor immune evasion. To address these constraints, we engineer Vδ2 T cells with enhanced attributes. By employing CD16 as a donor selection biomarker, we harness Vδ2 T cells characterized by heightened cytotoxicity and potent antibody-dependent cell-mediated cytotoxicity (ADCC) functionality. RNA sequencing analysis supports the augmented effector potential of Vδ2 T cells derived from CD16 high (CD16Hi) donors. Substantial enhancements are further achieved through CAR and IL-15 engineering methodologies. Preclinical investigations in two ovarian cancer models substantiate the effectiveness and safety of engineered CD16Hi Vδ2 T cells. These cells target tumors through multiple mechanisms, exhibit sustained in vivo persistence, and do not elicit graft-versus-host disease. These findings underscore the promise of engineered CD16Hi Vδ2 T cells as a viable therapeutic option for cancer treatment.
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Affiliation(s)
- Derek Lee
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Zachary Spencer Dunn
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, USA
| | - Wenbin Guo
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
| | - Carl J Rosenthal
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Natalie E Penn
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Yanqi Yu
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Kuangyi Zhou
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Zhe Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Feiyang Ma
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA, USA
| | - Miao Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Tsun-Ching Song
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Xinjian Cen
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Yan-Ruide Li
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA
| | - Jin J Zhou
- Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, CA, USA
| | - Matteo Pellegrini
- Bioinformatics Interdepartmental Program, University of California, Los Angeles, CA, USA
- Department of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA, USA
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA, USA
| | - Pin Wang
- Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, USA
| | - Lili Yang
- Department of Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, USA.
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, University of California, Los Angeles, CA, USA.
- Jonsson Comprehensive Cancer Center, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.
- Molecular Biology Institute, University of California, Los Angeles, CA, USA.
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3
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Nagai H, Karube R. WT1 Dendritic Cell Vaccine Therapy Improves Immune Profile and Prolongs Progression-Free Survival in End-Stage Lung Cancer. Cureus 2023; 15:e47320. [PMID: 38022278 PMCID: PMC10656931 DOI: 10.7759/cureus.47320] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
WT1-pulsed dendritic cell (WT1-DC) therapy was performed for end-stage squamous cell lung cancer that rapidly worsened soon after completion of carboplatin and paclitaxel. A rapid improvement in immune profile was observed with the initiation of WT1-DC. Docetaxel and ramucirumab were initiated as second-line agents during WT1-DC. The improvement of the immune profile status continued, and at the same time, the cancer showed a predominant shrinkage. Progression-free survival was over 577 days, and the patient was able to lead a normal daily life with a performance status of 1. These findings suggest that WT1-DC improves the immune profile, and this may contribute to the long-lasting and sustained effect of chemotherapy.
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Affiliation(s)
- Hisashi Nagai
- Oncology, Ginza Phoenix Clinic, Tokyo, JPN
- Graduate School of Human and Environmental Studies, Tokai University, Tokyo, JPN
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4
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Alasmari MM. A Review of Margetuximab-Based Therapies in Patients with HER2-Positive Metastatic Breast Cancer. Cancers (Basel) 2022; 15:cancers15010038. [PMID: 36612034 PMCID: PMC9817862 DOI: 10.3390/cancers15010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/24/2022] Open
Abstract
Breast cancer (BC) is the most commonly diagnosed cancer globally, with high mortality rates. Targeted drug therapies have revolutionized cancer treatment. For example, treatment with human epidermal receptor 2 (HER2) antagonists has markedly improved the prognosis of patients with HER2-positive BC (HER2 + BC). However, HER2+ metastatic BC (MBC) remains prevalent owing to its resistance to conventional anti-HER2 drugs. Therefore, novel agents are needed to overcome the limitations of existing cancer treatments and to enhance the progression-free and overall survival rates. Progress has been made by optimizing the fragment crystallizable (Fc) domain of trastuzumab, an IgG1 monoclonal, chimeric anti-HER2 antibody, to develop margetuximab. The modified Fc domain of margetuximab enhances its binding affinity to CD16A and decreases its binding affinity to CD32B, thereby promoting its antitumor activity. This review summarizes studies on the efficacy of margetuximab, discusses its utility as an anti-HER2 monoclonal antibody drug for the treatment of HER2 + BC, and presents the latest advances in the treatment of BC. This review provides insights into the clinical implication of margetuximab in HER2 + MBC treatment.
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Affiliation(s)
- Moudi M. Alasmari
- College of Medicine, King Saud Bin Abdul Aziz University for Health Sciences (KSAU-HS), Jeddah 21461, Saudi Arabia;
- King Abdullah International Medical Research Centre (KAIMRC), Jeddah 21423, Saudi Arabia
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5
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Gupta R, Gupta S, Antonios B, Ghimire B, Jindal V, Deol J, Gaikazian S, Huben M, Anderson J, Stender M, Jaiyesimi I. Therapeutic landscape of advanced HER2-positive breast cancer in 2022. MEDICAL ONCOLOGY (NORTHWOOD, LONDON, ENGLAND) 2022; 39:258. [PMID: 36224475 DOI: 10.1007/s12032-022-01849-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 09/06/2022] [Indexed: 11/29/2022]
Abstract
HER2-positive breast cancer is an aggressive subtype of breast cancer with five-year survival rates of 30% for the advanced stage. The development of anti-HER2 treatments has led to a paradigm shift in the management and clinical outcomes of advanced HER2-positive breast cancer patients. The standard first-line treatment consists of taxane-based chemotherapy plus dual anti-HER2 therapies with trastuzumab and pertuzumab. The antibody-drug conjugate (ADC) ado-trastuzumab emtansine (T-DM1) has been a second-line therapeutic standard, but the second-line treatment approach is rapidly evolving. Given a substantial advantage of another ADC, Fam-trastuzumab deruxtecan (T-DXd), compared to T-DM1 in a recent randomized trial in the second-line setting, T-DXd is currently the preferred second-line option. Optimal third-line treatment strategies are still not established, and multiple approaches have been used including combinations based on capecitabine, trastuzumab, or both with oral anti-HER2 tyrosine kinase inhibitors. Tucatinib plus capecitabine and trastuzumab, lapatinib plus trastuzumab, neratinib or lapatinib plus capecitabine are some of the FDA approved combinations. Another newer agent approved for third- or later-line therapy in the metastatic setting is margetuximab, an Fc-engineered anti-HER2 monoclonal antibody, in combination with chemotherapy. Other novel agents currently under clinical trials are the drugs that indirectly target HER2, including immune cell cycle inhibitors, PI3K/mTOR inhibitors, and immunotherapy agents.
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Affiliation(s)
- Ruby Gupta
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA.
| | - Sachin Gupta
- Department of Internal Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, PA, USA
| | - Bana Antonios
- Department of Internal Medicine, William Beaumont Hospital, Royal Oak, MI, 48073, USA
| | - Bipin Ghimire
- Department of Internal Medicine, William Beaumont Hospital, Royal Oak, MI, 48073, USA
| | - Vishal Jindal
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA
| | - Jaskiran Deol
- College of Liberal Arts and Sciences, Wayne State University, Detroit, MI, USA
| | - Suzanna Gaikazian
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA
| | - Marianne Huben
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA
| | - Joseph Anderson
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA
| | - Michael Stender
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA
| | - Ishmael Jaiyesimi
- Department of Hematology and Medical Oncology, William Beaumont Hospital, 3601 W. 13 Mile Rd, Royal Oak, MI, 48073, USA
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Vaněk O, Kalousková B, Abreu C, Nejadebrahim S, Skořepa O. Natural killer cell-based strategies for immunotherapy of cancer. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2022; 129:91-133. [PMID: 35305726 DOI: 10.1016/bs.apcsb.2022.02.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Natural killer (NK) cells are a family of lymphocytes with a natural ability to kill infected, harmed, or malignantly transformed cells. As these cells are part of the innate immunity, the cytotoxic mechanisms are activated upon recognizing specific patterns without prior antigen sensitization. This recognition is crucial for NK cell function in the maintenance of homeostasis and immunosurveillance. NK cells not only act directly toward malignant cells but also participate in the complex immune response by producing cytokines or cross-talk with other immune cells. Cancer may be seen as a break of all immune defenses when malignant cells escape the immunity and invade surrounding tissues creating a microenvironment supporting tumor progression. This process may be reverted by intervening immune response with immunotherapy, which may restore immune recognition. NK cells are important effector cells for immunotherapy. They may be used for adoptive cell transfer, genetically modified with chimeric antigen receptors, or triggered with appropriate antibodies and other antibody-fragment-based recombinant therapeutic proteins tailored specifically for NK cell engagement. NK cell receptors, responsible for target recognition and activation of cytotoxic response, could also be targeted in immunotherapy, for example, by various bi-, tri-, or multi-specific fusion proteins designed to bridge the gap between tumor markers present on target cells and activation receptors expressed on NK cells. However, this kind of immunoactive therapeutics may be developed only with a deep functional and structural knowledge of NK cell receptor: ligand interactions. This review describes the recent developments in the fascinating protein-engineering field of NK cell immunotherapeutics.
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Affiliation(s)
- Ondřej Vaněk
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic.
| | - Barbora Kalousková
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Celeste Abreu
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Shiva Nejadebrahim
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
| | - Ondřej Skořepa
- Department of Biochemistry, Faculty of Science, Charles University, Prague, Czech Republic
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7
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Mann JE, Ludwig ML, Kulkarni A, Scheftz EB, Murray IR, Zhai J, Gensterblum-Miller E, Jiang H, Brenner JC. Microbe-Mediated Activation of Toll-like Receptor 2 Drives PDL1 Expression in HNSCC. Cancers (Basel) 2021; 13:cancers13194782. [PMID: 34638266 PMCID: PMC8508280 DOI: 10.3390/cancers13194782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/08/2021] [Accepted: 09/11/2021] [Indexed: 11/27/2022] Open
Abstract
Simple Summary Tumors use immunosuppressive signals to evade detection by the immune system. While recurrent and metastatic head and neck squamous cell carcinoma has historically carried a poor prognosis, therapies targeting the immunosuppressive PD1:PDL1 axis have improved survival in certain patients. Defining mechanisms regulating PDL1 in various contexts may inform refinement of immunotherapy protocols. We identified a role for Toll-like Receptor 2 (TLR2) signaling in driving PDL1 expression. In antigen-presenting cells, TLR2 functions to initiate response to pathogens, and it is overexpressed or genetically altered in some tumors. We found that the synthetic TLR2 ligand Pam3CSK4, as well as whole bacteria, induced PDL1 expression in specific HNSCC cell line models, suggesting that TLR2 may contribute to immune evasion in chronically inflamed tissues. Abstract As immunotherapies targeting the PDL1 checkpoint have become a mainstay of treatment for a subset of head and neck squamous cell carcinoma (HNSCC) patients, a detailed understanding of the mechanisms underlying PDL1-mediated immune evasion is needed. To elucidate factors regulating expression of PDL1 in HNSCC cells, a genome-wide CRISPR profiling approach was implemented to identify genes and pathways conferring altered PDL1 expression in an HNSCC cell line model. Our screen nominated several candidate PDL1 drivers, including Toll-like Receptor 2 (TLR2). Depletion of TLR2 blocks interferon-γ-induced PDL1 expression, and stimulation of TLR2 with either Staphylococcus aureus or a bacterial lipopeptide mimetic, Pam3CSK4, enhanced PDL1 expression in multiple models. The data herein demonstrate a role for TLR2 in modulating the expression of PDL1 in HNSCC models and suggest that microbiota may directly modulate immunosuppression in cancer cells. Our study represents a step toward disentangling the diverse pathways and stimuli regulating PDL1 expression in HNSCC and underscores a need for future work to characterize the complex microbiome in HNSCC patients treated with immunotherapy.
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Affiliation(s)
- Jacqueline E Mann
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
- Department of Pathology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Megan L Ludwig
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Aditi Kulkarni
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
| | - Erin B Scheftz
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
| | - Isabel R Murray
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
| | - Jingyi Zhai
- Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA; (J.Z.); (H.J.)
| | - Elizabeth Gensterblum-Miller
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Hui Jiang
- Department of Biostatistics, University of Michigan, Ann Arbor, MI 48109, USA; (J.Z.); (H.J.)
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - J Chad Brenner
- Department of Otolaryngology—Head and Neck Surgery, University of Michigan, Ann Arbor, MI 48109, USA; (J.E.M.); (M.L.L.); (A.K.); (E.B.S.); (I.R.M.); (E.G.-M.)
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
- Rogel Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
- Correspondence:
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8
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Ding C, Patel D, Ma Y, Mann JFS, Wu J, Gao Y. Employing Broadly Neutralizing Antibodies as a Human Immunodeficiency Virus Prophylactic & Therapeutic Application. Front Immunol 2021; 12:697683. [PMID: 34354709 PMCID: PMC8329590 DOI: 10.3389/fimmu.2021.697683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/05/2021] [Indexed: 11/18/2022] Open
Abstract
Despite the discovery that the human immunodeficiency virus 1 (HIV-1) is the pathogen of acquired immunodeficiency syndrome (AIDS) in 1983, there is still no effective anti-HIV-1 vaccine. The major obstacle to the development of HIV-1 vaccine is the extreme diversity of viral genome sequences. Nonetheless, a number of broadly neutralizing antibodies (bNAbs) against HIV-1 have been made and identified in this area. Novel strategies based on using these bNAbs as an efficacious preventive and/or therapeutic intervention have been applied in clinical. In this review, we summarize the recent development of bNAbs and its application in HIV-1 acquisition prevention as well as discuss the innovative approaches being used to try to convey protection within individuals at risk and being treated for HIV-1 infection.
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Affiliation(s)
- Chengchao Ding
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China
| | - Darshit Patel
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Yunjing Ma
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Jamie F S Mann
- Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
| | - Jianjun Wu
- Department of AIDS Research, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Yong Gao
- The First Affiliated Hospital of USTC, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, China.,Department of Microbiology and Immunology, University of Western Ontario, London, ON, Canada
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9
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Mascarelli DE, Rosa RSM, Toscaro JM, Semionatto IF, Ruas LP, Fogagnolo CT, Lima GC, Bajgelman MC. Boosting Antitumor Response by Costimulatory Strategies Driven to 4-1BB and OX40 T-cell Receptors. Front Cell Dev Biol 2021; 9:692982. [PMID: 34277638 PMCID: PMC8277962 DOI: 10.3389/fcell.2021.692982] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/27/2021] [Indexed: 01/01/2023] Open
Abstract
Immunotherapy explores several strategies to enhance the host immune system’s ability to detect and eliminate cancer cells. The use of antibodies that block immunological checkpoints, such as anti–programed death 1/programed death 1 ligand and cytotoxic T-lymphocyte–associated protein 4, is widely recognized to generate a long-lasting antitumor immune response in several types of cancer. Evidence indicates that the elimination of tumors by T cells is the key for tumor control. It is well known that costimulatory and coinhibitory pathways are critical regulators in the activation of T cells. Besides blocking checkpoints inhibitors, the agonistic signaling on costimulatory molecules also plays an important role in T-cell activation and antitumor response. Therefore, molecules driven to costimulatory pathways constitute promising targets in cancer therapy. The costimulation of tumor necrosis factor superfamily receptors on lymphocytes surface may transduce signals that control the survival, proliferation, differentiation, and effector functions of these immune cells. Among the members of the tumor necrosis factor receptor superfamily, there are 4-1BB and OX40. Several clinical studies have been carried out targeting these molecules, with agonist monoclonal antibodies, and preclinical studies exploring their ligands and other experimental approaches. In this review, we discuss functional aspects of 4-1BB and OX40 costimulation, as well as the progress of its application in immunotherapies.
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Affiliation(s)
- Daniele E Mascarelli
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
| | - Rhubia S M Rosa
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
| | - Jessica M Toscaro
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Medical School, University of Campinas (UNICAMP), Campinas, Brazil
| | - Isadora F Semionatto
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil
| | - Luciana P Ruas
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
| | - Carolinne T Fogagnolo
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Medical School of Ribeirão Preto (FMRP), University of São Paulo, Ribeirão Preto, Brazil
| | - Gabriel C Lima
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Pro Rectory of Graduation, University of São Paulo, São Paulo, Brazil
| | - Marcio C Bajgelman
- Brazilian Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.,Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, Brazil.,Medical School, University of Campinas (UNICAMP), Campinas, Brazil
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10
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Long S, Gu Y, An Y, Lin X, Chen X, Wang X, Liao C, Ouyang W, Wang N, He Z, Zhao X. Reovirus enhances cytotoxicity of natural killer cells against colorectal cancer via TLR3 pathway. J Transl Med 2021; 19:185. [PMID: 33933132 PMCID: PMC8088708 DOI: 10.1186/s12967-021-02853-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/21/2021] [Indexed: 02/08/2023] Open
Abstract
Background Cetuximab has been approved for use for first-line treatment of patients with wild-type KRAS metastatic colorectal cancer (CRC). However, treatment with cetuximab has shown limited efficacy as a CRC monotherapy. In addition, natural killer (NK) cell function is known to be severely attenuated in cancer patients. The goal of this study was to develop a new strategy to enhance antibody-dependent cell-mediated cytotoxicity (ADCC) mediated by NK cells, in combination with cetuximab against CRC cells. Methods Ex vivo expanded NK cells were stimulated with reovirus, and reovirus-activated NK cells mediated ADCC assay were performed on CRC cells in combination with cetuximab. The synergistic antitumor effects of reovirus-activated NK cells and cetuximab were tested on DLD-1 tumor-bearing mice. Finally, Toll-like receptor 3 (TLR3) knockdown in NK cells, along with chemical blockade of TLR3/dsRNA complex, and inhibition of the TLR3 downstream signaling pathway, were performed to explore the mechanisms by which reovirus enhances NK cell cytotoxicity. Results We first confirmed that exposure of NK cells to reovirus enhanced their cytotoxicity in a dose-dependent manner.We then investigated whether reovirus-activated NK cells exposed to cetuximab-bound CRC cells exhibited greater anti-tumor efficacy than either monotherapy. Co-culture of CRC cell lines with reovirus-activated NK cells indicated that NK cytotoxicity was significantly higher in combination with cetuximab, regardless of KRAS mutation status or EGFR expression level. We also found that reovirus activation of NK cells, in conjunction with cetuximab, resulted in significantly stronger anti-tumor efficacy.Finally, TLR3 knockdown, inhibition of TLR3/dsRNA complex or TBK1/IKKε demonstrated that activation of NK cells by reovirus was dependent on TLR3 and its downstream signaling pathway. Conclusions This study demonstrated that combination treatment of reovirus-activated NK cells with cetuximab synergistically enhances their anti-tumor cytotoxicity, suggesting a strong candidate strategy for clinical treatment of CRC. Supplementary Information The online version contains supplementary material available at 10.1186/s12967-021-02853-y.
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Affiliation(s)
- Shiqi Long
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Yangzhuo Gu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China
| | - Yuanyuan An
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Xiaojin Lin
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Xiaoqing Chen
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Xianyao Wang
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Chunxiang Liao
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Weiwei Ouyang
- Department of Oncology, The Affiliated Hospital of Guizhou Medical University and Guizhou Cancer Hospital, Guiyang, 550004, China
| | - Nianxue Wang
- Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China
| | - Zhixu He
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China.,Department of Pediatrics, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Xing Zhao
- Center for Stem Cell and Tissue Engineering Research/School of Basic Medical Sciences, Guizhou Medical University, Guiyang, 550004, Guizhou, China. .,Key Laboratory of Adult Stem Cell Transformation Research, Guiyang, 550004, China. .,State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, 610041, China.
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11
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Adam L, Rosenbaum P, Bonduelle O, Combadière B. Strategies for Immunomonitoring after Vaccination and during Infection. Vaccines (Basel) 2021; 9:365. [PMID: 33918841 PMCID: PMC8070333 DOI: 10.3390/vaccines9040365] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 01/08/2023] Open
Abstract
Immunomonitoring is the study of an individual's immune responses over the course of vaccination or infection. In the infectious context, exploring the innate and adaptive immune responses will help to investigate their contribution to viral control or toxicity. After vaccination, immunomonitoring of the correlate(s) and surrogate(s) of protection is a major asset for measuring vaccine immune efficacy. Conventional immunomonitoring methods include antibody-based technologies that are easy to use. However, promising sensitive high-throughput technologies allowed the emergence of holistic approaches. This raises the question of data integration methods and tools. These approaches allow us to increase our knowledge on immune mechanisms as well as the identification of key effectors of the immune response. However, the depiction of relevant findings requires a well-rounded consideration beforehand about the hypotheses, conception, organization and objectives of the immunomonitoring. Therefore, well-standardized and comprehensive studies fuel insight to design more efficient, rationale-based vaccines and therapeutics to fight against infectious diseases. Hence, we will illustrate this review with examples of the immunomonitoring approaches used during vaccination and the COVID-19 pandemic.
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Affiliation(s)
| | | | | | - Behazine Combadière
- Inserm, Centre d’Immunologie et des Maladies Infectieuses, Sorbonne Université, 75013 Paris, France; (L.A.); (P.R.); (O.B.)
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12
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NK Cell Adoptive Immunotherapy of Cancer: Evaluating Recognition Strategies and Overcoming Limitations. Transplant Cell Ther 2020; 27:21-35. [PMID: 33007496 DOI: 10.1016/j.bbmt.2020.09.030] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 08/14/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023]
Abstract
Natural killer (NK) cells, the primary effector cells of the innate immune system, utilize multiple strategies to recognize tumor cells by (1) detecting the presence of activating receptor ligands, which are often upregulated in cancer; (2) targeting cells that have a loss of major histocompatibility complex (MHC); and (3) binding to antibodies that bind to tumor-specific antigens on the tumor cell surface. All these strategies have been successfully harnessed in adoptive NK cell immunotherapies targeting cancer. In this review, we review the applications of NK cell therapies across different tumor types. Similar to other forms of immunotherapy, tumor-induced immune escape and immune suppression can limit NK cell therapies' efficacy. Therefore, we also discuss how these limitations can be overcome by conferring NK cells with the ability to redirect their tumor-targeting capabilities and survive the immune-suppressive tumor microenvironment. Finally, we also discuss how future iterations can benefit from combination therapies with other immunotherapeutic agents.
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13
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Transcriptional Regulation of Natural Killer Cell Development and Functions. Cancers (Basel) 2020; 12:cancers12061591. [PMID: 32560225 PMCID: PMC7352776 DOI: 10.3390/cancers12061591] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/30/2020] [Accepted: 06/13/2020] [Indexed: 02/08/2023] Open
Abstract
Natural killer (NK) cells are the major lymphocyte subset of the innate immune system. Their ability to mediate anti-tumor cytotoxicity and produce cytokines is well-established. However, the molecular mechanisms associated with the development of human or murine NK cells are not fully understood. Knowledge is being gained about the environmental cues, the receptors that sense the cues, signaling pathways, and the transcriptional programs responsible for the development of NK cells. Specifically, a complex network of transcription factors (TFs) following microenvironmental stimuli coordinate the development and maturation of NK cells. Multiple TFs are involved in the development of NK cells in a stage-specific manner. In this review, we summarize the recent advances in the understandings of TFs involved in the regulation of NK cell development, maturation, and effector function, in the aspects of their mechanisms, potential targets, and functions.
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14
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Mezni E, Vicier C, Guerin M, Sabatier R, Bertucci F, Gonçalves A. New Therapeutics in HER2-Positive Advanced Breast Cancer: Towards a Change in Clinical Practices?pi. Cancers (Basel) 2020; 12:E1573. [PMID: 32545895 PMCID: PMC7352740 DOI: 10.3390/cancers12061573] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 05/28/2020] [Accepted: 06/12/2020] [Indexed: 12/13/2022] Open
Abstract
Over the last few decades, improved knowledge of oncogenic activation mechanisms of HER2 protein has led to the development of HER2 targeted therapies that are currently commonly used in HER2-positive advanced breast cancer, such as trastuzumab, lapatinib, pertuzumab, and ado-trastuzumab emtansine. The management of this breast cancer subgroup has thus been revolutionized and its prognosis has changed dramatically. Nevertheless, HER2-positive advanced breast cancer remains an incurable disease and resistance to conventional anti-HER2 drugs is almost unavoidable. Nowadays, biochemical and pharmaceutical advances are meeting the challenge of developing increasingly sophisticated therapies directed against HER2, including novel anti HER2 antibodies with increased affinity. New antibody-drug conjugates (ADC) with more advanced pharmacological properties, and dual targeting of epitopes via bispecific monoclonal antibodies are also emerging. In addition, more potent and more specific HER2 tyrosine kinase inhibitors have shown interesting outcomes and are under development. Finally, researchers' interest in tumor microenvironment, particularly tumor-infiltrating lymphocytes, and the major role that signaling pathways, such as the PI3K/AKT/mTOR pathway, play in the development of resistance to anti-HER2 therapies have spurred the development of clinical trials evaluating innovative combinations of anti-HER2 with PD-1/PDL-1, CDK4/6 and PI3K inhibitors. However, several questions remain unresolved, like the optimal management of HER2-positive/HR-positive advanced breast cancer and the identification of predictive biomarkers to better define populations that can benefit most from these new therapies and approaches.
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Affiliation(s)
- Essia Mezni
- Department of Medical Oncology, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France; (E.M.); (C.V.); (M.G.); (R.S.); (F.B.)
| | - Cécile Vicier
- Department of Medical Oncology, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France; (E.M.); (C.V.); (M.G.); (R.S.); (F.B.)
| | - Mathilde Guerin
- Department of Medical Oncology, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France; (E.M.); (C.V.); (M.G.); (R.S.); (F.B.)
| | - Renaud Sabatier
- Department of Medical Oncology, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France; (E.M.); (C.V.); (M.G.); (R.S.); (F.B.)
- CRCM-Predictive Oncology Laboratory, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France
| | - François Bertucci
- Department of Medical Oncology, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France; (E.M.); (C.V.); (M.G.); (R.S.); (F.B.)
- CRCM-Predictive Oncology Laboratory, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France
| | - Anthony Gonçalves
- Department of Medical Oncology, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France; (E.M.); (C.V.); (M.G.); (R.S.); (F.B.)
- CRCM-Predictive Oncology Laboratory, Inserm U1068, CNRS UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, 13009 Marseille, France
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15
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Martinsen JT, Gunst JD, Højen JF, Tolstrup M, Søgaard OS. The Use of Toll-Like Receptor Agonists in HIV-1 Cure Strategies. Front Immunol 2020; 11:1112. [PMID: 32595636 PMCID: PMC7300204 DOI: 10.3389/fimmu.2020.01112] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 05/07/2020] [Indexed: 12/16/2022] Open
Abstract
Toll-like receptors (TLRs) are a family of pattern recognition receptors and part of the first line of defense against invading microbes. In humans, we know of 10 different TLRs, which are expressed to varying degrees in immune cell subsets. Engaging TLRs through their specific ligands leads to activation of the innate immune system and secondarily priming of the adaptive immune system. Because of these unique properties, TLR agonists have been investigated as immunotherapy in cancer treatment for many years, but in recent years there has also been growing interest in the use of TLR agonists in the context of human immunodeficiency virus type 1 (HIV-1) cure research. The primary obstacle to curing HIV-1 is the presence of a latent viral reservoir in transcriptionally silent immune cells. Due to the very limited transcription of the integrated HIV-1 proviruses, latently infected cells cannot be targeted and cleared by immune effector mechanisms. TLR agonists are very interesting in this context because of their potential dual effects as latency reverting agents (LRAs) and immune modulatory compounds. Here, we review preclinical and clinical data on the impact of TLR stimulation on HIV-1 latency as well as antiviral and HIV-1-specific immunity. We also focus on the promising role of TLR agonists in combination strategies in HIV-1 cure research. Different combinations of TLR agonists and broadly neutralizing antibodies or TLRs agonists as adjuvants in HIV-1 vaccines have shown very encouraging results in non-human primate experiments and these concepts are now moving into clinical testing.
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Affiliation(s)
| | | | | | - Martin Tolstrup
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
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16
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Gao R, Sheng Z, Sreenivasan CC, Wang D, Li F. Influenza A Virus Antibodies with Antibody-Dependent Cellular Cytotoxicity Function. Viruses 2020; 12:v12030276. [PMID: 32121563 PMCID: PMC7150983 DOI: 10.3390/v12030276] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/26/2020] [Accepted: 02/26/2020] [Indexed: 12/11/2022] Open
Abstract
Influenza causes millions of cases of hospitalizations annually and remains a public health concern on a global scale. Vaccines are developed and have proven to be the most effective countermeasures against influenza infection. Their efficacy has been largely evaluated by hemagglutinin inhibition (HI) titers exhibited by vaccine-induced neutralizing antibodies, which correlate fairly well with vaccine-conferred protection. Contrarily, non-neutralizing antibodies and their therapeutic potential are less well defined, yet, recent advances in anti-influenza antibody research indicate that non-neutralizing Fc-effector activities, especially antibody-dependent cellular cytotoxicity (ADCC), also serve as a critical mechanism in antibody-mediated anti-influenza host response. Monoclonal antibodies (mAbs) with Fc-effector activities have the potential for prophylactic and therapeutic treatment of influenza infection. Inducing mAbs mediated Fc-effector functions could be a complementary or alternative approach to the existing neutralizing antibody-based prevention and therapy. This review mainly discusses recent advances in Fc-effector functions, especially ADCC and their potential role in influenza countermeasures. Considering the complexity of anti-influenza approaches, future vaccines may need a cocktail of immunogens in order to elicit antibodies with broad-spectrum protection via multiple protective mechanisms.
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MESH Headings
- Adaptive Immunity
- Animals
- Antibodies, Neutralizing/chemistry
- Antibodies, Neutralizing/immunology
- Antibodies, Viral/chemistry
- Antibodies, Viral/immunology
- Antibody-Dependent Cell Cytotoxicity
- Hemagglutinin Glycoproteins, Influenza Virus/chemistry
- Hemagglutinin Glycoproteins, Influenza Virus/immunology
- Host-Pathogen Interactions/immunology
- Humans
- Immunity, Innate
- Influenza A virus/immunology
- Influenza Vaccines/immunology
- Influenza, Human/immunology
- Influenza, Human/prevention & control
- Influenza, Human/virology
- Structure-Activity Relationship
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Affiliation(s)
- Rongyuan Gao
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA; (R.G.); (C.C.S.)
| | - Zizhang Sheng
- Zuckerman Institute, Columbia University, New York, NY 10027, USA;
| | - Chithra C. Sreenivasan
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA; (R.G.); (C.C.S.)
| | - Dan Wang
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA; (R.G.); (C.C.S.)
- Correspondence: (D.W.); (F.L.)
| | - Feng Li
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD 57007, USA; (R.G.); (C.C.S.)
- BioSNTR, Brookings, SD 57007, USA
- Correspondence: (D.W.); (F.L.)
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17
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Konstantinidou S, Papaspiliou A, Kokkotou E. Current and future roles of biosimilars in oncology practice. Oncol Lett 2019; 19:45-51. [PMID: 31897113 PMCID: PMC6923870 DOI: 10.3892/ol.2019.11105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/30/2019] [Indexed: 12/29/2022] Open
Abstract
Biologics have been used increasingly in the treatment and supportive care of cancer; however, their high cost places a significant burden on healthcare systems. The expiration of patents for biologics has led to the development of biosimilars, with the aim of reducing cost and increasing accessibility to novel treatments, which are affordable for a greater number of patients. Biosimilars are highly similar but not identical to the reference products; therefore, strict regulatory requirements have been formed for their approval. This ensures that there are no clinically meaningful differences compared with respective biologics, with regard to purity, safety and efficacy. In 2003, a regulatory framework for the approval of biosimilars was established in Europe, whereas the USA did not implement a framework until 2009, when the Biologics Price Competition and Innovation Act was formed. A number of biosimilars have currently been approved in oncology and the number is expected to rise in the near future. More than 10 years of evidence has revealed that biosimilars are safe and effective; however healthcare professionals need to be further educated to eliminate potential misconceptions and integrate biosimilars into routine clinical practice. The present review aims to provide an overview of the biosimilars used in Europe and the USA, present their main benefits and challenges, and discuss their current and future roles in medical oncology.
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Affiliation(s)
- Sofia Konstantinidou
- Oncology Unit, The Third Department of Medicine, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece
| | - Angeliki Papaspiliou
- Oncology Unit, The Third Department of Medicine, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece
| | - Eleni Kokkotou
- Oncology Unit, The Third Department of Medicine, Medical School, National and Kapodistrian University of Athens, 115 27 Athens, Greece
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18
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Seledtsov VI, Seledtsova GV. Total threshold cytotoxicity of therapeutic antibodies for selective destruction of pathogenic memory T cells: implications for immunotherapy of autoimmune and allergenic disorders. Expert Rev Clin Immunol 2019; 15:701-706. [DOI: 10.1080/1744666x.2019.1617698] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Victor I. Seledtsov
- Center for Medical Biotechnologies, lmmanuel Kant Baltic Federal University, Kaliningrad, Russia
| | - Galina V. Seledtsova
- Laboratory for Cellular Technologies, Institute for Fundamental and Clinical Immunology, Novosibirsk, Russia
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19
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Lo Nigro C, Macagno M, Sangiolo D, Bertolaccini L, Aglietta M, Merlano MC. NK-mediated antibody-dependent cell-mediated cytotoxicity in solid tumors: biological evidence and clinical perspectives. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:105. [PMID: 31019955 DOI: 10.21037/atm.2019.01.42] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The process of antibody-dependent cell-mediated cytotoxicity (ADCC) makes use of the innate immune cells providing antitumor cytotoxicity activated by antibodies linked to target cells. Natural killer (NK) cells are a small set of lymphocytes, but are considered the most important cells among those able to induce ADCC. They provoke innate immune responses and harmonise spontaneous cytotoxicity towards tumor and virus-infected cells. They are able to swiftly produce biochemical signals and cytokines so as to stimulate subsequent adaptive immune responses. Immunotherapeutics that target NK cells, augmenting their immune response, can cause the antitumor dynamics of the antibodies to be improved. The recent developments in the field of NK cell immunotherapy and genotypic factors which might affect patient responses to antibody-dependent immunotherapies are the main subject of this review, with a particular focus on the manipulations and strategies used to augment ADCC. In the next years combined treatment with monoclonal antibodies (mAbs) and immunomodulatory drugs will be an important part in antitumor therapy. The main challenge remains the difficulty in distinguishing in the clinical setting, between the target effect that many mAbs exert against specific cell membrane receptors and the ADCC effect that they too also can induce. Drugs able to activate NK cells, that are major actors in mAb-mediated ADCC, will improve the ADCC effect against tumors.
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Affiliation(s)
- Cristiana Lo Nigro
- Department of Oncology, S. Croce & Carle Teaching Hospital, Cuneo, Italy
| | - Marco Macagno
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy
| | - Dario Sangiolo
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy.,Department of Oncology, University of Torino, Torino, Italy
| | - Luca Bertolaccini
- Department of Thoracic Surgery, AUSL Bologna Maggiore Teaching Hospital, Bologna, Italy
| | - Massimo Aglietta
- Candiolo Cancer Institute, FPO-IRCCS, Candiolo, Italy.,Department of Oncology, University of Torino, Torino, Italy
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20
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Elder E, Krishna B, Williamson J, Aslam Y, Farahi N, Wood A, Romashova V, Roche K, Murphy E, Chilvers E, Lehner PJ, Sinclair J, Poole E. Monocytes Latently Infected with Human Cytomegalovirus Evade Neutrophil Killing. iScience 2019; 12:13-26. [PMID: 30677738 PMCID: PMC6352302 DOI: 10.1016/j.isci.2019.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/13/2018] [Accepted: 01/03/2019] [Indexed: 12/25/2022] Open
Abstract
One site of latency of human cytomegalovirus (HCMV) in vivo is in undifferentiated cells of the myeloid lineage. Although latently infected cells are known to evade host T cell responses by suppression of T cell effector functions, it is not known if they must also evade surveillance by other host immune cells. Here we show that cells latently infected with HCMV can, indeed, be killed by host neutrophils but only in a serum-dependent manner. Specifically, antibodies to the viral latency-associated US28 protein mediate neutrophil killing of latently infected cells. To address this mechanistically, a full proteomic screen was carried out on latently infected monocytes. This showed that latent infection downregulates the neutrophil chemoattractants S100A8/A9, thus suppressing neutrophil recruitment to latently infected cells. The ability of latently infected cells to inhibit neutrophil recruitment represents an immune evasion strategy of this persistent human pathogen, helping to prevent clearance of the latent viral reservoir.
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Affiliation(s)
- Elizabeth Elder
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Benjamin Krishna
- Genomic Medicine Institute, Lerner Research Institute, 9620 Carnegie Avenue, Cleveland, OH, USA
| | - James Williamson
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Yusuf Aslam
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Neda Farahi
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Alexander Wood
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Veronika Romashova
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Kate Roche
- Cleveland Clinic, Lerner Research Institute, Cleveland, OH, USA
| | - Eain Murphy
- Cleveland Clinic, Lerner Research Institute, Cleveland, OH, USA
| | - Edwin Chilvers
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - Paul J Lehner
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK
| | - John Sinclair
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK.
| | - Emma Poole
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Hills Road, Cambridge CB2 0QQ, UK.
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21
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Influenza Virus Infection Enhances Antibody-Mediated NK Cell Functions via Type I Interferon-Dependent Pathways. J Virol 2019; 93:JVI.02090-18. [PMID: 30541850 DOI: 10.1128/jvi.02090-18] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 11/29/2018] [Indexed: 11/20/2022] Open
Abstract
Natural killer (NK) cells are an important component in the control of influenza virus infection, acting to both clear virus-infected cells and release antiviral cytokines. Engagement of CD16 on NK cells by antibody-coated influenza virus-infected cells results in antibody-dependent cellular cytotoxicity (ADCC). Increasing the potency of antibody-mediated NK cell activity could ultimately lead to improved control of influenza virus infection. To understand if NK cells can be functionally enhanced following exposure to influenza virus-infected cells, we cocultured human peripheral blood mononuclear cells (PBMCs) with influenza virus-infected human alveolar epithelial (A549) cells and evaluated the capacity of NK cells to mediate antibody-dependent functions. Preincubation of PBMCs with influenza virus-infected cells markedly enhanced the ability of NK cells to respond to immune complexes containing hemagglutinin (HA) and anti-HA antibodies or transformed allogeneic cells in the presence or absence of a therapeutic monoclonal antibody. Cytokine multiplex, RNA sequencing, supernatant transfer, Transwell, and cytokine-blocking/cytokine supplementation experiments showed that type I interferons released from PBMCs were primarily responsible for the influenza virus-induced enhancement of antibody-mediated NK cell functions. Importantly, the influenza virus-mediated increase in antibody-dependent NK cell functionality was mimicked by the type I interferon agonist poly(I·C). We conclude that the type I interferon secretion induced by influenza virus infection enhances the capacity of NK cells to mediate ADCC and that this pathway could be manipulated to alter the potency of anti-influenza virus therapies and vaccines.IMPORTANCE Protection from severe influenza may be assisted by antibodies that engage NK cells to kill infected cells through ADCC. Studies have primarily focused on antibodies that have ADCC activity, rather than the capacity of NK cells to become activated and mediate ADCC during an influenza virus infection. We found that type I interferon released in response to influenza virus infection primes NK cells to become highly reactive to anti-influenza virus ADCC antibodies. Enhancing the capacity of NK cells to mediate ADCC could assist in controlling influenza virus infections.
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22
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Abstract
Although vaccines have been successfully developed against several pathogens, designing an effective vaccine to protect against human immunodeficiency virus (HIV) has remained an intractable challenge. To address this, the research community has looked to human and non-human primate studies to understand the correlates of protective immunity, based on which a targeted vaccine strategy may be designed. Two distinct approaches, focused on different immune correlates of protection, have emerged. The first focuses on structure-based design of HIV envelope immunogens that are able to induce antibodies that neutralize the virus. The second focuses on strategies aimed at driving non-neutralizing polyclonal and polyfunctional antibodies that engage other arms of immunity to clear the virus. Here we review these two different vaccine design strategies and posit that ultimately the convergence of these two efforts will likely be necessary for the development of a globally protective HIV vaccine.
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Affiliation(s)
- Galit Alter
- Ragon Institute of MGH, MIT, and Harvard, Boston, MA, USA.
| | - Dan Barouch
- Ragon Institute of MGH, MIT, and Harvard, Boston, MA, USA; Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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23
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Maity D, Kandasamy G, Sudame A. Superparamagnetic Iron Oxide Nanoparticles for Cancer Theranostic Applications. Nanotheranostics 2019. [DOI: 10.1007/978-3-030-29768-8_12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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24
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Funahashi SI, Kawai S, Fujii E, Taniguchi K, Nakano K, Ishikawa S, Aburatani H, Suzuki M. Generation of an anti-desmoglein 3 antibody without pathogenic activity of pemphigus vulgaris for therapeutic application to squamous cell carcinoma. J Biochem 2018; 164:471-481. [PMID: 30239818 PMCID: PMC6267343 DOI: 10.1093/jb/mvy074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 09/17/2018] [Indexed: 01/09/2023] Open
Abstract
It is ideal for the target antigen of a cytotoxic therapeutic antibody against cancer to be cancer-specific, but such antigens are rare. Thus an alternative strategy for target selection is necessary. Desmoglein 3 (DSG3) is highly expressed in lung squamous cell carcinoma, while it is well-known that anti-DSG3 antibodies cause pemphigus vulgaris, an autoimmune disease. We evaluated DSG3 as a novel target by selecting an epitope that exerts efficacy against cancer with no pathogenic effects in normal tissues. Pathogenic anti-DSG3 antibodies induce skin blisters by inhibiting the cell–cell interaction in a Ca2+-dependent manner. We screened anti-DSG3 antibodies that bind DGS3 independent of Ca2+ and have high antibody-dependent cell cytotoxicity (ADCC) activity against DSG3-expressing cells. These selected antibodies did not inhibit cell–cell interaction and showed ADCC activity against squamous cell carcinoma cell lines. Furthermore, one of the DSG3 antibodies showed anti-tumour activity in tumour mouse models but did not induce adverse effects such as blister formation in the skin. Thus it was possible to generate an antibody against DSG3 by using an appropriate epitope that retained efficacy with no pathogenicity. This approach of epitope selection may expand the variety of druggable target molecules.
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Affiliation(s)
- Shin-Ichi Funahashi
- Forerunner Pharma Research Co., Ltd., Komaba Open Laboratory, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Shigeto Kawai
- Forerunner Pharma Research Co., Ltd., Komaba Open Laboratory, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Etsuko Fujii
- Forerunner Pharma Research Co., Ltd., Komaba Open Laboratory, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan.,Chugai Pharmaceutical Co., Ltd., 200 Kajiwara, Kamakura, Kanagawa, Japan
| | - Kenji Taniguchi
- Chugai Pharmaceutical Co., Ltd., 200 Kajiwara, Kamakura, Kanagawa, Japan
| | - Kiyotaka Nakano
- Forerunner Pharma Research Co., Ltd., Komaba Open Laboratory, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Shumpei Ishikawa
- Genome Science, RCAST, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Hiroyuki Aburatani
- Genome Science, RCAST, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Masami Suzuki
- Forerunner Pharma Research Co., Ltd., Komaba Open Laboratory, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan.,Chugai Pharmaceutical Co., Ltd., 200 Kajiwara, Kamakura, Kanagawa, Japan
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25
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Seledtsov VI, Seledtsova GV. Attaining threshold antibody cytotoxicity for selective tumor cell destruction: an opinion article. Oncotarget 2018; 9:35790-35794. [PMID: 30515270 PMCID: PMC6254663 DOI: 10.18632/oncotarget.26271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 10/06/2018] [Indexed: 11/25/2022] Open
Abstract
We propose a novel immunotherapeutic paradigm that justifies application of several antibodies to various membrane-associated antigens to achieve a critical threshold density of immune complexes on the surface of cancer cells sufficient for triggering downstream cytolytic pathways. Indeed, some cancer-associated antigens (such as cancer/testis antigens) were found to be expressed on many cancer (but not normal) cells, with their baseline membrane expression levels being originally quite low for some of them, or even further down-regulated due to immune-driven cell selection. To achieve the mandatory threshold density of membrane-associated immune complexes on malignant cells, the concept stipulates combined application of antibodies specific for a cancer-associated antigen along with antibodies against an antigen expressed not only on tumor, but also on normal cells. In the proposed scenario it is of vital importance that the latter antibodies should be applied in suboptimal dosage to exclude the destruction of normal cells devoid of a cancer-associated antigen. Malignant cells often co-express antigens not present concurrently on normal cells at high levels. In such cases, suboptimal dosages of antibodies specific for those antigens could also be applied to achieve cumulative effect leading to selective destruction of tumour cells. Hence, the described immunotherapeutic technology could be used metaphorically speaking as a kind of ‘immunological knife’, which is capable of highly selective destruction of cancer cells without destroying normal cells.
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26
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Han X, Vesely MD. Stimulating T Cells Against Cancer With Agonist Immunostimulatory Monoclonal Antibodies. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2018; 342:1-25. [PMID: 30635089 DOI: 10.1016/bs.ircmb.2018.07.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Elimination of cancer cells through antitumor immunity has been a long-sought after goal since Sir F. Macfarlane Burnet postulated the theory of immune surveillance against tumors in the 1950s. Finally, the use of immunotherapeutics against established cancer is becoming a reality in the past 5years. Most notable are the monoclonal antibodies (mAbs) directed against inhibitory T-cell receptors cytotoxic T lymphocyte antigen-4 and programmed death-1. The next generation of mAbs targeting T cells is designed to stimulate costimulatory receptors on T cells. Here we review the recent progress on these immunostimulatory agonist antibodies against the costimulatory receptors CD137, GITR, OX40, and CD27.
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Affiliation(s)
- Xue Han
- Department of Immunobiology, Yale School of Medicine, New Haven, CT, United States
| | - Matthew D Vesely
- Department of Dermatology, Yale School of Medicine, New Haven, CT, United States
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27
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Ricciardi A, Zelt NH, Visitsunthorn K, Dalton JP, Ndao M. Immune Mechanisms Involved in Schistosoma mansoni-Cathepsin B Vaccine Induced Protection in Mice. Front Immunol 2018; 9:1710. [PMID: 30090103 PMCID: PMC6068236 DOI: 10.3389/fimmu.2018.01710] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Accepted: 07/11/2018] [Indexed: 01/13/2023] Open
Abstract
A vaccine against schistosomiasis would contribute to a long-lasting decrease in disease spectrum and transmission. Our previous protection studies in mice using Schistosoma mansoni Cathepsin B (Sm-Cathepsin B) resulted in 59 and 60% worm burden reduction with CpG oligodeoxynucleotides and Montanide ISA720 VG as adjuvants, respectively. While both formulations resulted in significant protection in a mouse model of schistosomiasis, the elicited immune responses differed. Therefore, in this study, we aimed to decipher the mechanisms involved in Sm-Cathepsin B vaccine-mediated protection. We performed in vitro killing assays using schistosomula stage parasites as targets for lung-derived leukocytes and serum obtained from mice immunized with Sm-Cathepsin B adjuvanted with either Montanide ISA 720 VG or CpG and from non-vaccinated controls. Lung cells and immune sera from the Sm-Cathepsin B + Montanide group induced the highest killing (63%) suggesting the importance of antibodies in cell-mediated parasite killing. By contrast, incubation with lung cells from Sm-Cathepsin B + CpG immunized animals induced significant parasite killing (53%) independent of the addition of immune serum. Significant parasite killing was also observed in the animals immunized with Sm-Cathepsin B alone (41%). For the Sm-Cathepsin B + Montanide group, the high level killing effect was lost after the depletion of CD4+ T cells or natural killer (NK) cells from the lung cell preparation. For the Sm-Cathepsin B + CpG group, high parasite killing was lost after CD8+ T cell depletion, and a reduction to 39% was observed upon depletion of NK cells. Finally, the parasite killing in the Sm-Cathepsin B alone group was lost after the depletion of CD4+ T cells. Our results demonstrate how the different Sm-Cathepsin B formulations influence the immune mechanisms involved in parasite killing and protection against schistosomiasis.
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Affiliation(s)
- Alessandra Ricciardi
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada.,Research Institute of the McGill University Health Center, Infectious Diseases and Immunity in Global Health (IDIGH) Program, National Reference Center for Parasitology, Montreal, QC, Canada
| | - Nicholas H Zelt
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada.,Research Institute of the McGill University Health Center, Infectious Diseases and Immunity in Global Health (IDIGH) Program, National Reference Center for Parasitology, Montreal, QC, Canada
| | | | - John P Dalton
- School of Biological Sciences, Medical Biology Centre (MBC), Queen's University Belfast, Belfast, Ireland
| | - Momar Ndao
- Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada.,Research Institute of the McGill University Health Center, Infectious Diseases and Immunity in Global Health (IDIGH) Program, National Reference Center for Parasitology, Montreal, QC, Canada
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28
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Xu C, Goß AV, Dorneburg C, Debatin KM, Wei J, Beltinger C. Proof-of-principle that a decoy virus protects oncolytic measles virus against neutralizing antibodies. Oncolytic Virother 2018; 7:37-41. [PMID: 29750140 PMCID: PMC5933358 DOI: 10.2147/ov.s150637] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Attenuated oncolytic measles virus (OMV) is a promising antitumor agent in early-phase clinical trials. However, pre-existing immunity against measles might be a hurdle for OMV therapy. Methods OMV was inactivated with short-wavelength ultraviolet light (UV-C). Loss of replication and oncolytic activity of UV-inactivated OMV were confirmed by tissue culture infective dose 50 (TCID50) assay using Vero cells and by flow cytometry using Jurkat cells. An enzyme-linked immunosorbent assay was performed to verify that UV-inactivated OMV remained antigenic. Different doses of UV-inactivated OMV were pre-cultured in media supplemented with measles immune serum. The mixture was transferred to Jurkat cells and active OMV was added. Active OMV-induced death of Jurkat cells was monitored by flow cytometry. Results UV-inactivation abrogates OMV replication while maintaining its antigenicity. UV-inactivated OMV sequesters pre-existing anti-MV antibodies in Jurkat cell culture, thereby protecting active OMV from neutralization and preserving oncolytic activity. Conclusion We prove the principle that a non-replicating OMV can serve as a “decoy” for neutralizing anti-MV antibodies, thereby allowing antitumor activity of OMV.
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Affiliation(s)
- Chun Xu
- Department of Pediatrics and Adolescent Medicine, Section of Experimental Pediatric Oncology, University Medical Center Ulm, Ulm, Germany.,Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, China
| | - Annika Verena Goß
- Department of Pediatrics and Adolescent Medicine, Section of Experimental Pediatric Oncology, University Medical Center Ulm, Ulm, Germany
| | - Carmen Dorneburg
- Department of Pediatrics and Adolescent Medicine, Section of Experimental Pediatric Oncology, University Medical Center Ulm, Ulm, Germany
| | - Klaus-Michael Debatin
- Department of Pediatrics and Adolescent Medicine, Section of Experimental Pediatric Oncology, University Medical Center Ulm, Ulm, Germany
| | - Jiwu Wei
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, China
| | - Christian Beltinger
- Department of Pediatrics and Adolescent Medicine, Section of Experimental Pediatric Oncology, University Medical Center Ulm, Ulm, Germany
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29
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Santoni G, Amantini C, Morelli MB, Tomassoni D, Santoni M, Marinelli O, Nabissi M, Cardinali C, Paolucci V, Torniai M, Rinaldi S, Morgese F, Bernardini G, Berardi R. High CTLA-4 expression correlates with poor prognosis in thymoma patients. Oncotarget 2018; 9:16665-16677. [PMID: 29682176 PMCID: PMC5908277 DOI: 10.18632/oncotarget.24645] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 02/21/2018] [Indexed: 02/06/2023] Open
Abstract
Thymomas, tumors that arise from epithelial cells of the thymus gland, are the most common neoplasms of the anterior mediastinum, with an incidence rate of approximately 2.5 per million/year. Cytotoxic T Lymphocyte Antigen 4 (CTLA-4 or CD152) exerts inhibitory activity on T cells, and since its oncogenic role in the progression of different types of tumors, it has emerged as a potential therapeutic target in cancer patients. In this study, we assessed the expression of CTLA-4 both at mRNA and protein levels in paraffin embedded-tissues from patients with thymomas. Furthermore, we evaluated the relationship between CTLA-4 expression and the clinical-pathologic characteristics and prognosis in patients with thymomas. Sixty-eight patients with median age corresponding to 62 years were included in this analysis. Thymomas were classified accordingly to the WHO and Masaoka-Koga for histochemical analysis and for prognostic significance. A statistical difference was found between CTLA-4 mRNA levels in human normal thymus compared with thymoma specimens. CTLA-4 expression was statistically found to progressively increase in A, B1, B2, AB and it was maximal in B3 thymomas. According to Masaoka-Koga pathological classification, CTLA-4 expression was lower in I, IIA and IIB, and higher in invasive III and IV stages. By confocal microscopy analysis we identified the expression of CTLA-4 both in tumor cells and in CD45+ tumor-infiltrating leukocytes, mainly in B3 and AB thymomas. Finally, CTLA-4 overexpression significantly correlates with reduced overall survival in thymoma patients and in atypical thymoma subgroup, suggesting that it represents a negative prognostic factor.
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Affiliation(s)
| | - Consuelo Amantini
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Maria Beatrice Morelli
- School of Pharmacy, University of Camerino, Camerino, Italy.,Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Daniele Tomassoni
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Matteo Santoni
- Medical Oncology Unit, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I-Lancisi, Salesi di Ancona, Italy
| | - Oliviero Marinelli
- School of Pharmacy, University of Camerino, Camerino, Italy.,School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | | | - Claudio Cardinali
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Vittorio Paolucci
- Medical Oncology Unit, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I-Lancisi, Salesi di Ancona, Italy
| | - Mariangela Torniai
- Medical Oncology Unit, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I-Lancisi, Salesi di Ancona, Italy
| | - Silvia Rinaldi
- Medical Oncology Unit, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I-Lancisi, Salesi di Ancona, Italy
| | - Francesca Morgese
- Medical Oncology Unit, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I-Lancisi, Salesi di Ancona, Italy
| | - Giovanni Bernardini
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy.,I.N.M. Neuromed, Pozzilli, Isernia (IS), Italy
| | - Rossana Berardi
- Medical Oncology Unit, Università Politecnica delle Marche, Azienda Ospedaliero-Universitaria Ospedali Riuniti Umberto I-Lancisi, Salesi di Ancona, Italy
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30
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Gene-modified NK-92MI cells expressing a chimeric CD16-BB-ζ or CD64-BB-ζ receptor exhibit enhanced cancer-killing ability in combination with therapeutic antibody. Oncotarget 2018; 8:37128-37139. [PMID: 28415754 PMCID: PMC5514896 DOI: 10.18632/oncotarget.16201] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 03/04/2017] [Indexed: 12/27/2022] Open
Abstract
Natural killer (NK) cells play a pivotal role in monoclonal antibody-mediated immunotherapy through the antibody-dependent cell-mediated cytotoxicity (ADCC) mechanism. NK-92MI is an interleukin-2 (IL-2)-independent cell line, which was derived from NK-92 cells with superior cytotoxicity toward a wide range of tumor cells in vitro and in vivo. Nonetheless, the Fc-receptor (CD16) that usually mediates ADCC is absent in NK-92 and NK-92MI cells. To apply NK-92MI cell-based immunotherapy to cancer treatment, we designed and generated two chimeric receptors in NK-92MI cells that can bind the Fc portion of human immunoglobulins. The construct includes the low-affinity Fc receptor CD16 (158F) or the high-affinity Fc receptor CD64, with the addition of the CD8a extracellular domain, CD28 transmembrane domains, two costimulatory domains (CD28 and 4-1BB), and the signaling domain from CD3ζ. The resulting chimeric receptors, termed CD16-BB-ζ and CD64-BB-ζ, were used to generate modified NK-92MI cells expressing the chimeric receptor, which were named NK-92MIhCD16 and NK-92MIhCD64 cells, respectively. We found that NK-92MIhCD16 and NK-92MIhCD64 cells significantly improved cytotoxicity against CD20-positive non-Hodgkin's lymphoma cells in the presence of rituximab. These results suggest that the chimeric receptor-expressing NK-92MI cells may enhance the clinical responses to currently available anticancer monoclonal antibodies.
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31
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A Novel System for the Quantification of the ADCC Activity of Therapeutic Antibodies. J Immunol Res 2017; 2017:3908289. [PMID: 29104875 PMCID: PMC5635472 DOI: 10.1155/2017/3908289] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/19/2017] [Accepted: 08/01/2017] [Indexed: 11/23/2022] Open
Abstract
Novel ADCC effector cells expressing the V-variant or F-variant of FcγRIIIa (CD16a) and firefly luciferase under the control of a chimeric promoter incorporating recognition sequences for the principal transcription factors involved in FcγRIIIa signal transduction, together with novel target cells overexpressing a constant high level of the specific antigen recognized by rituximab, trastuzumab, cetuximab, infliximab, adalimumab, or etanercept, confer improved sensitivity, specificity, and dynamic range in an ADCC assay relative to effector cells expressing a NFAT-regulated reporter gene and wild-type target cells. The effector cells also contain a normalization gene rendering ADCC assays independent of cell number or serum matrix effects. The novel effector and target cells in a frozen thaw-and-use format exhibit low vial-to-vial and lot-to-lot variation in their performance characteristics reflected by CVs of 10% or less. Homologous control target cells in which the specific target gene has been invalidated by genome editing providing an ideal control and a means of correcting for nonspecific effects were observed with certain samples of human serum. The novel effector cells and target cells expressing noncleavable membrane-bound TNFα have been used to quantify ADCC activity in serum from patients with Crohn's disease treated with infliximab and to relate ADCC activity to drug levels.
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32
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Chester C, Fritsch K, Kohrt HE. Natural Killer Cell Immunomodulation: Targeting Activating, Inhibitory, and Co-stimulatory Receptor Signaling for Cancer Immunotherapy. Front Immunol 2015; 6:601. [PMID: 26697006 PMCID: PMC4667030 DOI: 10.3389/fimmu.2015.00601] [Citation(s) in RCA: 121] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 11/09/2015] [Indexed: 01/11/2023] Open
Abstract
There is compelling clinical and experimental evidence to suggest that natural killer (NK) cells play a critical role in the recognition and eradication of tumors. Efforts at using NK cells as antitumor agents began over two decades ago, but recent advances in elucidating NK cell biology have accelerated the development of NK cell-targeting therapeutics. NK cell activation and the triggering of effector functions is governed by a complex set of activating and inhibitory receptors. In the early phases of cancer immune surveillance, NK cells directly identify and lyse cancer cells. Nascent transformed cells elicit NK cell activation and are eliminated. However, as tumors progress, cancerous cells develop immunosuppressive mechanisms that circumvent NK cell-mediated killing, allowing for tumor escape and proliferation. Therapeutic intervention aims to reverse tumor-induced NK cell suppression and sustain NK cells’ tumorlytic capacities. Here, we review tumor–NK cell interactions, discuss the mechanisms by which NK cells generate an antitumor immune response, and discuss NK cell-based therapeutic strategies targeting activating, inhibitory, and co-stimulatory receptors.
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Affiliation(s)
- Cariad Chester
- Division of Oncology, Department of Medicine, Stanford University , Stanford, CA , USA ; Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine , Stanford, CA , USA
| | - Katherine Fritsch
- Division of Oncology, Department of Medicine, Stanford University , Stanford, CA , USA
| | - Holbrook E Kohrt
- Division of Oncology, Department of Medicine, Stanford University , Stanford, CA , USA
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